Loss of separation when a CL601 crosses runway 9L while a BE30 was on takeoff roll.

Attributes
ACN	392727
Time
Date	199802
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : pbi
State Reference	FL
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : bur
Operator	general aviation : corporate
Make Model Name	Super King Air 300
Operating Under FAR Part	Part 91
Flight Phase	climbout : takeoff
Flight Plan	IFR
Aircraft 2
Make Model Name	Challenger CL601
Operating Under FAR Part	other : unknown
Flight Phase	ground other : taxi
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	other other : other pilot : instrument pilot : commercial pilot : atp
Experience	flight time last 90 days : 120 flight time total : 6100 flight time type : 240
ASRS Report	392727
Person 2
Affiliation	Other
Function	other personnel other
Qualification	pilot : private
Events
Anomaly	conflict : ground less severe non adherence : published procedure non adherence : required legal separation other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : rejected takeoff flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 1500 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

After being cleared for takeoff on runway 9L at pbi, I started my takeoff roll. As my aircraft was accelerating I noticed a challenger starting to cross the runway, from right to left at taxiway F. The person in the right seat of my aircraft ( a non rated pilot) tried to contact the tower 3 times, there was no response. Simultaneously, I aborted the takeoff. As the other aircraft was exiting the runway he stated that he was informed that I was holding in position, and he was cleared to cross the runway. At that time I asked the controller to confirm that I was cleared for takeoff. He stated that I was cleared. I believe that the problem was caused by a communication error between the tower and ground controllers and that the appropriate actions were taken to avoid the potentially disastrous situation.

Original NASA ASRS Text

Title: LOSS OF SEPARATION WHEN A CL601 CROSSES RWY 9L WHILE A BE30 WAS ON TKOF ROLL.

Narrative: AFTER BEING CLRED FOR TKOF ON RWY 9L AT PBI, I STARTED MY TKOF ROLL. AS MY ACFT WAS ACCELERATING I NOTICED A CHALLENGER STARTING TO CROSS THE RWY, FROM R TO L AT TXWY F. THE PERSON IN THE R SEAT OF MY ACFT ( A NON RATED PLT) TRIED TO CONTACT THE TWR 3 TIMES, THERE WAS NO RESPONSE. SIMULTANEOUSLY, I ABORTED THE TKOF. AS THE OTHER ACFT WAS EXITING THE RWY HE STATED THAT HE WAS INFORMED THAT I WAS HOLDING IN POS, AND HE WAS CLRED TO CROSS THE RWY. AT THAT TIME I ASKED THE CTLR TO CONFIRM THAT I WAS CLRED FOR TKOF. HE STATED THAT I WAS CLRED. I BELIEVE THAT THE PROB WAS CAUSED BY A COM ERROR BTWN THE TWR AND GND CTLRS AND THAT THE APPROPRIATE ACTIONS WERE TAKEN TO AVOID THE POTENTIALLY DISASTROUS SIT.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.